Rescue LiFePO4 portable power packs are capable of delivering significant current to start cars, trucks, ATV's, boats, and other 12V equipment. World's first lithium power pack with charger and maintainer from Lithium Battery Company. Portable power stations are compact, convenient and efficient machines you can use to store electric power for use in cases of emergency power outages, when you're in remote places with no electricity connection, or when you want to go off the grid.